In mild climates, the average adult male with a low physical activity level drinks about 1,700 ml per day, and adult females drink about 1,500 ml per day. The exact amount of water to drink varies from person to person. Normal people in good health can drink 5 to 7 glasses of water per day, about 1500 to 2000 mL. However, this includes fruits, milk products, liquid beverages, that contain more water, all of which can be calculated as an index of fluid intake. If exercise is heavy, or excessive physical exertion, additional water supplementation of 500~1000mL may be required. continued supplementation is also required if sweating is heavy, or if blood loss or water loss is high. In daily life, it is recommended to drink more water in moderation, which is beneficial to the body, but if you are a sick person, you should follow your doctor’s instructions to control your water intake if there is a limitation on the amount of water you can drink.